[ALSA] ASoC CS4270 codec device driver

This patch adds ALSA SoC support for the Cirrus Logic CS4270 codec.  The
following features are suppored:
1) Stand-alone and software mode
2) Software mode via I2C only
3) Master mode, not Slave
4) No power management

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 20 insertions, 0 deletions

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index e5fb437b86e8..78248808a9d8 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -17,3 +17,23 @@ config SND_SOC_WM8753
 config SND_SOC_WM9712
         tristate
         depends on SND_SOC
+
+# Cirrus Logic CS4270 Codec
+config SND_SOC_CS4270
+        tristate
+        depends on SND_SOC
+
+# Cirrus Logic CS4270 Codec Hardware Mute Support
+# Select if you have external muting circuitry attached to your CS4270.
+config SND_SOC_CS4270_HWMUTE
+        bool
+        depends on SND_SOC_CS4270
+
+# Cirrus Logic CS4270 Codec VD = 3.3V Errata
+# Select if you are affected by the errata where the part will not function
+# if MCLK divide-by-1.5 is selected and VD is set to 3.3V.  The driver will
+# not select any sample rates that require MCLK to be divided by 1.5.
+config SND_SOC_CS4270_VD33_ERRATA
+        bool
+        depends on SND_SOC_CS4270
+